texinfo-5.0+ incompatible with GDB's gdbint.info image

[Jan Kratochvil]

Hi,

since texinfo-5.0+ gdbint.info cannot be viewed with /usr/bin/info,
click "Coding Standards::":
        Coding Standards: No such file or directory

It is due to:
        @center @image{stack_frame,14cm}

I have filed a minimal reproducer into Fedora bug database:
        https://bugzilla.redhat.com/show_bug.cgi?id=928975

But I guess it is probably texinfo-5.0+ upstream bug.

Reproducer:
infobug.tar.gz = https://bugzilla.redhat.com/attachment.cgi?id=717865

FAIL: info-5.1-1.fc20.x86_64
PASS: info-4.13a-18.fc18.x86_64

Steps to Reproduce:
info ./bug.info
point at "second::" and press enter

Actual results:
second: No such file or directory

Expected results:
Displayed "Node: second".

Additional info:
The problem is due to:
  @image{img}
and img.txt:
x x============
               x  x   x  x            x       x
               x  x   x  x============x
Curiously any subtle change of "img.txt" will make the bug unreproducible.
doc says:
  `makeinfo' includes `FILENAME.txt' verbatim for Info output
  (more or less as if it was an address@hidden').
but I have not found what is wrong with included "img.txt".


Regards,
Jan